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Relational Data Model

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In the previous blog post, we covered Data Modeling. We have seen that data modeling is really important before jumping into predictive modeling.  In this article, we will cover the Relational Data Model (RDM). Let's start from the very basics, relational means anything which is linked with some other thing. This link is called "Relationship". In RDM or RM there are major three types of relationship cardinalities (also called Multiplicities or Cardianalities): 1. One to one 2. One to many 3. Many to many We can understand these with the help of a few simple examples;  One to one: One department has one manager. One to many: One class has many students. Many to many: Many teachers can teach many students. Okay, so we have got an abstract overview of the term " Relational ", now the next thing is " Data ", data covers everything, anything... And finally, " Model " means something in the form of a template, design, a kind of blueprint.  To store...
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Probability And Statistics For Engineers

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Billy Graham said: " We are not cisterns, made for hoarding. We are channels made for sharing. " So I am passing "Probability And Statistics For Engineers by R.A Johnson" to you. As I got this from someone else, to whom I am very thankful. In this book the concepts of the subject are explained very well, I hope you will find this book, helpful and beneficial. There are certain distorted page images, but you can still get it (Insha' Allah!) and, here you go...
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Software Engineering Past Papers

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When we were in school we used to have surplus amount of  past papers, and we used to practice them in order to get prepared for the exam day. But now in university or college ( till bachelors ), we don't have overabundance of or even sufficient past papers. We tried to get them from our seniors or from the teachers. Teachers mostly do not provide any past paper for practicing and senior students usually don't have them, so from where we can get these papers? How can we practice? If you are the one who is in desperate need of past papers regarding Software Engineering courses then here you go..... GTUInfo provides them for free, it provides the semester wise and subject wise past exam papers.  so what are you waiting for? click this link  and grab the past papers for practicing more and more for improving your grades.
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An Interview with Pakistani Data Scientist : Dr. Zeeshan Ul Hassan Usmani

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Dr. Zeeshan-ul-Hassan Usmani, the name known for Data Science, Predictify me, Eisenhower fellowship  and most importantly motivation for many of the students. He is the Author of book like  (C++) ++سی/سی ,  Bit Coin Block Chain aur Crypto Currency بٹ کوائن، بلاک چین اور کرپٹو کرنسی  and many other, you can visit them here . Today "Data Science Tales - A Tech blog by Bia Chaudhry," asked him some of the questions, as an interview and we are very glad that he gave his precious time to answer them. It was kinda "Remote Interview"... not the traditional one.. The Interview Question:  How can you describe " Dr. Zeeshan ul Hassan Usmani " ? ANSWER: I am a shameless idealist. We are all idealists at some stage of our lives but then it fades away and we live as a mediocre. I don’t want it to fade away. I remind myself almost every day that I need to make my today better than my yesterday, and the challenge is keep getting harder J . We onl...
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Pintos : Series : Part 4 : Final

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In this blog post, we will be done with our Pintos Project #1 and this Pintos Series AlhumdullillAllah. so let's start... In the previous posts of this series, we have looked at the problem that is of busy waiting. To solve this problem I took help from code written by other people on Github,  so to learn it deeper you can get to look at this code, by Muhammad Zaheer  .  The basic modification is done in two files i.e. timer.c and thread.h;       ALARM CLOCK IMPLEMENTAIONS      ========================== Changes in timer.c:   - A global list of sleeping threads is created as: -static struct list sleep_list; Changes in thread.h:   - For keeping track of a sleeping thread when woken up, we declared: -int64_t sleep_time;   - When a thread calls timer_sleep(), it gets into the sleep list as: -struct list_elem sleep_list_elem Algorithms Used ...
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Pintos : Series : Part 1 : Installation

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PintOS is an Operating system, but this is not a complete OS. There are many kernel level functions implemented but we need to modify it to implement it correctly. So, if you are taking OS course or interested in Operating Systems then you can follow my PintOS Series. As installation of PintOS is the most important and tedious task, so we need to do it first! Actually I have learnt about the installation steps from various sites, I will share their links side by side. What I grasped from there, I will compose it into this post. I know you might be thinking if the installation steps are already available on-line, then why am I writing them for you? The reason for this is that, when I installed PintOS, I found a lot of problems initially but then it worked. So, what I understood from my experience and from the sites, I will share that. I believe that if learning is done through mutual cooperation,  then this will benefit everyone . So, let's learn together.... First Mist...
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Brain (A Computer Virus)

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Brain, a computer virus? who wrote this? when? Pakistani? How? Who? ? ? ? Ohh please calm down, I am giving the answers... Just Listen.. I mean Just Read.. Brain is one of the Boot Sector Computer Virus. Boot sector is the area of the hard disk, CD, DVD, CD-ROM and other storage devices that contains the machine code. The machine code is the one that is loaded into the computer RAM by the built-in firmware of computing system. The main purpose of Boot sector is to boot (start) the computer program loading process into the computer system.🔥🔥🔥 where was I, ya..  Brain ! so brain is the First Computer Virus, that is written in September 1986 by Two Pakistani Brothers Amjad Farooq Alvi and Basit Farooq Alvi . They wrote this virus in Lahore, Pakistan. Brain is sometimes called as "First Virus". This is written for the MS-DOS (Microsoft Disk Operating System). The language used for this virus is Assembly Language. Brain is also the first stealth viru...
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Banana News Network

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So, yeah a quick blog post on HTML. You need to make a news website layout, how do you do that? I made a simple web page, that I want to share with you.. The code: <!DOCTYPE html> <html> <head><title> Banana News Network </title></head> <body> <table style= "font-family: georgia;" cellspacing= "0" > <tr> <th width= "100%" colspan= "3" style= "padding-left:50px; background-color: yellow; font-size:30px" ><h1><img src= "b.png" width= "50px" > BANANA NEWS NETWORK </h1></th> <td></td> </tr> <tr> <td colspan= "3" ><span> <ul type= "none" style= "background-color:black; font-size: 30px; font-family: georgia; " > <li style= "display:inline-block" ><a href= "something.html" style=...
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Jumbo Package

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In this blog post I will talk about: Software Design Patterns Open source platforms e.g. Joomla SEO (Search Engine Optimization) Swift vs Python React vs Angular vs vue.js Machine Learning and related learnings And Choosing Operating System.... Seems so strange, too many things with no visible links ....But wait! I have a solution to this problem, and the solution is in "telling a story" So let's begin John was a student of engineering, he was about to start his academic year for graduation. He wanted to go for software engineering as his major. He got admission in one of the most prestigious college of his state.  He was so passionate and optimistic about his field, he was good in programming and used to participate in every coding and programming contest. Now that he was in his Second year, he thought to get some kind of Internship. So he created his resume, checked it, get it checked by some of his amazing teachers. His resume was somewhat li...
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